MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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2-Proportion Test
In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.
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A labor statisticIan claims that 6% of the labor forces will be laid off likely  to pandemic impact. In a random sample of 547 employees, 44 of them will be likely to be laid off.

  1. if you go against the claim,  what is the P-value of the test? (use StatCrunch)
3. A labor statisticlan claims that 6% of the labor forces will be laid off likely to pandemic impact. In a random sample of 547 employees, 44 of them will be likely to be laid off. A. What is the probability of the case that 44 out of 547 will be likely laid off? B. What is the probability of the case that more than 44 out of 547 will be likely laid off? C. What probability distribution you used for A and B ? D. You walk in a city and ask people if they will be likely laid off. What is the probability that on the 10th people you asked was the first instance who answered "yes"? E. What probability distribution you used for D? F. If you don't trust its claim, what is the Ho, and what is the Ha ? G. If you support its claim, what is the Ho, and what is the Ha ? H. f you go against the claim, what is the P- value of the test? (use StatCrunch) 1. Giving the level of significance a = 0.01, can we reject the claim? J. Giving the level of significance c = 0.90, а what is the confidence interval of the population proportion ? (use StatCrunch)
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Transcribed Image Text:3. A labor statisticlan claims that 6% of the labor forces will be laid off likely to pandemic impact. In a random sample of 547 employees, 44 of them will be likely to be laid off. A. What is the probability of the case that 44 out of 547 will be likely laid off? B. What is the probability of the case that more than 44 out of 547 will be likely laid off? C. What probability distribution you used for A and B ? D. You walk in a city and ask people if they will be likely laid off. What is the probability that on the 10th people you asked was the first instance who answered "yes"? E. What probability distribution you used for D? F. If you don't trust its claim, what is the Ho, and what is the Ha ? G. If you support its claim, what is the Ho, and what is the Ha ? H. f you go against the claim, what is the P- value of the test? (use StatCrunch) 1. Giving the level of significance a = 0.01, can we reject the claim? J. Giving the level of significance c = 0.90, а what is the confidence interval of the population proportion ? (use StatCrunch)
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